Tehuantepec Forecast

January 13, 2026, 3:01 pm (UTC: -05:00)
Subject: Tehuantepec Forecast

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This forecast has not been reviewed. It was generated from an automatic model.

.WARNINGS.

...GALE WARNING...
.WITHIN 16N94W TO 16N95W TO 15N96W TO 14N95W TO 15N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS
30 TO 40 KT. SEAS 2.5 TO 4.0 M. ELSEWHERE...WITHIN 11N93W TO
16N95W TO 13N102W TO 13N108W TO 08N108W TO 04N97W TO 11N93W... NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M.
.18 HOUR FORECAST WITHIN
15N94W TO 16N95W TO 14N96W TO 13N96W TO 13N95W TO
15N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 20 TO 30
KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N95W TO 14N96W TO 13N96W TO 13N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 20
TO 30 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 16N94.5W TO 16.5N95W TO 16N95W TO
15.5N95W TO 15.5N94.5W TO 16N94.5W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 25 TO 35 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE...WITHIN 16N94W TO 16N95W TO 14N96W TO 12N96W TO 14N95W
TO 14N94W TO 16N94W... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO
3.0 M.

.WITHIN 16N94W TO 16N95W TO 15N96W TO 14N95W TO 15N95W TO 15N94W
TO 16N94W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS
30 TO 40 KT. SEAS 2.5 TO 4.0 M. ELSEWHERE...WITHIN 11N93W TO
16N95W TO 13N102W TO 13N108W TO 08N108W TO 04N97W TO 11N93W... NE
WINDS 20 TO 30 KT. SEAS 2.5 TO 4.0 M.
.18 HOUR FORECAST WITHIN
15N94W TO 16N95W TO 14N96W TO 13N96W TO 13N95W TO
15N94W...INCLUDING THE GULF OF TEHUANTEPEC... N WINDS 20 TO 30
KT. SEAS 2.5 TO 3.0 M.
.24 HOUR FORECAST WITHIN 16N95W TO 14N96W TO 13N96W TO 13N95W TO
16N95W...INCLUDING THE GULF OF TEHUANTEPEC... N TO NE WINDS 20
TO 30 KT. SEAS LESS THAN 2.5 M.
.48 HOUR FORECAST WITHIN 16N94.5W TO 16.5N95W TO 16N95W TO
15.5N95W TO 15.5N94.5W TO 16N94.5W...INCLUDING THE GULF OF
TEHUANTEPEC... N WINDS 25 TO 35 KT. SEAS 2.5 TO 3.0 M.
ELSEWHERE...WITHIN 16N94W TO 16N95W TO 14N96W TO 12N96W TO 14N95W
TO 14N94W TO 16N94W... N TO NE WINDS 20 TO 30 KT. SEAS 2.5 TO
3.0 M.

GULF OF TEHUANTEPEC GALE WARNING: A 1028 MB HIGH IS ANALYZED
OVER N MEXICO, MAINTAINING A STRONG PRESSURE GRADIENT OVER THE
TEHUANTEPEC REGION. SCATTEROMETER DATA FROM LAST NIGHT INDICATED
WINDS OF 35 TO 40 KT CONTINUING THROUGH THE TEHUANTEPEC REGION,
WITH VERY ROUGH SEAS OF UP TO 14 FT. THESE GAP WINDS WILL
CONTINUE TO DECREASE TODAY AS THE HIGH PRESSURE WEAKENS AND
SLIDES TO THE EAST, BUT WILL REMAIN ABOVE GALE FORCE THROUGH
TONIGHT. ROUGH SEAS GENERATED BY THESE GALES WILL EXTEND
SOUTHWARD TO AS FAR AS 04N TODAY BEFORE GRADUALLY SUBSIDING.
CONDITIONS WILL BRIEFLY IMPROVE WED BEFORE A STRONG COLD FRONT
MOVES THROUGH THE GULF OF AMERICA WED NIGHT, SUPPORTING ANOTHER
ROUND OF GALE-FORCE WINDS THURSDAY MORNING. MARINERS ARE URGED
TO TAKE THE NECESSARY ACTION TO AVOID THE HAZARDOUS MARINE
CONDITIONS BROUGHT ON BY THE GALE-FORCE WINDS.
REFER TO THE SPECIAL FEATURES SECTION ABOVE FOR DETAILS ON A
GALE WARNING FOR THE GULF OF TEHUANTEPEC REGION.
FOR THE FORECAST, GALE FORCE WINDS AND VERY ROUGH SEAS WILL
PREVAIL IN THE GULF OF TEHUANTEPEC UNTIL TONIGHT. BY THU
MORNING, GALE FORCE NORTHERLY GAP WINDS WILL RESUME IN THE GULF
OF TEHUANTEPEC REGION DUE TO A STRONG RIDGE THAT WILL DEVELOP
OVER THE GULF OF AMERICA AND ACROSS EASTERN MEXICO IN THE WAKE OF
A STRONG COLD FRONT. ANOTHER ROUND OF GALE FORCE WINDS IS
POSSIBLE IN THE TEHUANTEPEC REGION THIS WEEKEND. MARINERS ARE
URGED TO TAKE THE NECESSARY ACTION TO AVOID THE HAZARDOUS MARINE
CONDITIONS BROUGHT ON BY THE GALE FORCE WINDS.

HIGH PRESSURE NORTH OF THE REGION CONTINUES TO SUPPORT STRONG
NORTHEAST TO EAST GAP WINDS IN THE GULF OF PAPAGAYO REGION ALONG
WITH 6-8 FT SEAS AT TIMES. SEAS OF SIMILAR HEIGHT GENERATED BY
GALES IN THE GULF OF TEHUANTEPEC ARE IMPACTING THE OFFSHORE
WATERS OF GUATEMALA AND EL SALVADOR. MODERATE TO LOCALLY FRESH N
WINDS ARE NOTED IN THE GULF OF PANAMA. MODERATE OR WEAKER WINDS
AND SLIGHT SEAS ARE ELSEWHERE. A 1009 MB LOW PRESSURE OFFSHORE
WESTERN COLOMBIA IS GENERATING SCATTERED MODERATE CONVECTION
WITHIN 120 NM OF SHORE.
FOR THE FORECAST, HIGH PRESSURE NORTH OF THE REGION WILL SUPPORT
FRESH TO STRONG NORTHEAST TO EAST WINDS IN THE GULF OF PAPAGAYO
REGION THROUGH THE WEEK. PULSING MODERATE TO FRESH NORTHERLY
WINDS ARE EXPECTED IN THE GULF OF PANAMA THROUGH THE WEEK. THE
STRONG GAP WIND EVENT IN THE GULF OF TEHUANTEPEC HAS GENERATED
6-8 FT SEAS OVER THE OFFSHORE WATERS OF GUATEMALA AND EL
SALVADOR. THESE SEAS WILL SUBSIDE TONIGHT AS THE NORTHWEST SWELL
DECAYS. OTHERWISE, GENTLE TO MODERATE BREEZES AND SLIGHT TO
MODERATE SEAS WILL PERSIST ELSEWHERE THROUGH THE FORECAST PERIOD.

FOR THE FORECAST, MODERATE TO LOCALLY FRESH TRADES WILL CONTINUE
ACROSS THE WESTERN PART OF THE AREA THROUGH THU. ROUGH SEAS IN
THAT REGION WILL GRADUALLY SUBSIDE DURING THAT PERIOD. OTHERWISE,
THE ONGOING GAP WIND EVENT IN THE GULF OF TEHUANTEPEC WILL BRING
ROUGH SEAS TO THE WATERS FROM 04N TO 12N BETWEEN 95W AND 110W
INTO TONIGHT. A SET OF LONG-PERIOD NORTHWEST SWELL IS EXPECTED
TO BEGIN TO INTRUDE INTO THE FAR WESTERN WATERS STARTING TONIGHT.
ANOTHER SET OF LONG-PERIOD NORTHWEST SWELL WILL LIKELY ENTER OUR
NW WATERS FRI NIGHT.

SHORT-TERM TEHUANTEPEC
TODAY - NNW 26-33, Seas NNW 7.7-7.9 ft @ 7sec
TONITE - NNW 22-27, Seas NNW 9.7-9.8 ft @ 8sec
WEDNESDAY - NNW 22-27, Seas NNW 9.7-9.8 ft @ 8sec
WEDNESDAY NIGHT - N 22-28, Seas NNW 4.2-4.6 ft @ 5sec

LONG-TERM TEHUANTEPEC
THURSDAY - NNW 31-39, Seas NNW 7.3-7.5 ft @ 7sec
FRIDAY - N 22-27, Seas NNW 15.6-15.7 ft @ 9sec
SATURDAY - NNW 25-31, Seas SSW 4.2-4.9 ft @ 13sec
SUNDAY - N 25-31, Seas N/A ?-? ft @ ?
MONDAY - N 22-28, Seas N/A ?-? ft @ ?